• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2020, Volume: 13, Issue: 30, Pages: 3041-3050

Original Article

Design of frequency reconfigurable antenna using dual band electromagnetic band gap structure

Received Date:21 April 2020, Accepted Date:26 July 2020, Published Date:19 August 2020


Objectives/Method: An innovative fractal shape of Electromagnetic Band Gap (EBG) structure is proposed in this study which has dual bandgap.The proposed frequency reconfigurable antenna is integrated with the EBG structure to improve performance parameters. CST Microwave Studio Software is used for simulation. The proposed EBG has dual bandgap S-band (2 GHz to4 GHz) and X-band (8 GHz to 10 GHz). The proposed reconfigurable antenna operates at frequencies one in S-band and another in X-band. PIN diode is used to change the structure of the antenna so that it can operate at two different frequencies (2.67 GHz and 8.8 GHz). Simulated and measured results are compared. Findings: When PIN diode is ON, antenna operates at 2.67 GHz and at 8.7 GHz when PIN diode is OFF. Since antenna is integrated with the proposed EBG structure, gain and bandwidth of the antenna is increased with EBG structure as compared to without EBG structure at both frequencies.Simulated and measured results are compared and found good agreement.Applications of this antenna are radar applications, satellite communication,microwave applications, space applications. Novelty: It is observed that most of the antennas are designed with either EBG structure for improvement in parameters or are designed as reconfigurable antennas to operate at different frequency bands. In the proposed design, reconfigurable antenna is designed along with EBG structure which gives:

• Compact structure

• Improvement in parameter viz gain, bandwidth for all frequencies.

Keywords: Electromagnetic band gap; reconfigurable antenna; frequency bands; dual band; dispersion diagram


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© 2020 Kanitkar et al.This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee).


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